A core strength is SoundCity's ability to link into the artistic programming across the city to ensure as many young people as possible are involved in as many musical events as possible.
This year's celebration event has a record number of partners and schools taking part with more than 200 young musicians performing in the music education hub"s annual showcase.
Brighton & Hove Music Trust chair Cllr Phélim Mac Cafferty said::
"The work of Soundcity continues to inspire the city's young people with the power of music.
"We continue to show that music- whether that's rock, classical, in a classroom or theatre - makes a marked difference to our young people.
"Music opens doors as well as minds: it really has the power to transform lives."
Performers include musicians nominated by local secondary schools as well as community organisations.
Cllr Phélim Mac Cafferty, continued:
"In only two years, Soundcity has become the key event in the year when our young people"s most innovative musical talents are profiled.
"Last year we had our city's young musicians play euphonium, string arrangements, a batteria of bins and ripping-rock, and this year promises to be just as exciting.
"I am really looking forward to SoundCity3."
SoundCity 3 is at 7pm on Saturday 14 March 2015 at Brighton Dome Corn Exchange. See www.soundcitybh.org for more details.